Model
Hisense WF5S2845BW
Rank #1 means 0 of the 388 washing machine models we track cost less to run each year; the 99th efficiency percentile means it uses less energy for its size than 99% of those models.
What does the Hisense WF5S2845BW cost to run per year?
The Hisense WF5S2845BW runs for about $7 a year, landing it in the very bottom slice of the cost table at rank #1 of 388 washing machine models we track. Its 99th size-adjusted efficiency percentile puts it in a small top tier of the class once capacity stops flattering the comparison. Its IMEF of 2.92 reflects integrated modified energy factor, one of the class's core efficiency levers.
Immediately around it on the leaderboard, the Hisense WF5S2845BT at $7/yr runs a little cheaper and the Premium Levella PWMF280HB at $7/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A washing machine typically stays in service for somewhere around 10 years; over that span, the Hisense WF5S2845BW's $7/yr adds up to roughly $70 in electricity alone, before purchase price or repairs. At rank #1 of 388, it is one of the single cheapest washing machine models we track to run, in the top one percent on cost.
Also sold as: Hisense WF5S2845BB.
By the numbers
The Hisense WF5S2845BW normalized against its whole class, so each figure means something.
What it costs you over time
Running cost is an every-year number, so it compounds. At $7/yr, here is what the Hisense WF5S2845BW adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Hisense WF5S2845BW costs about $70. That is roughly $130 less than the class median, which would run closer to $200 over the same ten years.
How the Hisense WF5S2845BW compares
The washing machine class we track runs from $7 to $58 a year. At $7/yr, it runs about $13 a year cheaper than the class median of $20, and it is the cheapest washing machine to run in the class among the models we track.
What drives its running cost
At 2.8 cu ft, the Hisense WF5S2845BW is a small washing machine for its class, which spans 1.9 to 6 cu ft with a median of 4.5 cu ft, at the small end of the class, capacity itself is doing a lot of the work to keep that figure down, separate from how efficient the unit actually is. Its IMEF of 2.92, above the class median of 2.76, reflects integrated modified energy factor: a higher figure means it wrings more useful work out of every kilowatt-hour, so it is the efficiency lever to weigh against raw size.
- Spin and wash efficiency (IMEF). IMEF is this class's core efficiency yardstick; two washers with the same drum size can carry meaningfully different IMEF figures and running costs.
- Drum volume. A larger-capacity washer can wash more per load, which can lower cost per pound of laundry, but it also draws more water and energy per cycle if you are not filling it.
- Water heating. Most washers rely on your home's hot water supply, but internal-heater sanitize or hot-wash cycles use meaningfully more electricity than a cold or warm wash.
Common questions
Is the Hisense WF5S2845BW cheap to run?
Yes. Its $7/yr running cost puts it at rank #1 of 388, below what most washing machine models we track cost to run.
How much does the Hisense WF5S2845BW cost per month?
About $0.6 a month, which is the $7 annual estimate spread across twelve months at the US average rate of $0.1856/kWh. Your own bill scales with your local electricity rate and how heavily you use it.
How is this running-cost figure calculated?
The formula is annual kWh times price per kWh: 39 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $7 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Hisense WF5S2845BW for its size?
99th percentile once size is factored in. That means its size-adjusted efficiency is a real factor in the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 2 | Hisense WF5S2845BT2.8 cu ft | $7 |
| 1 | Hisense WF5S2845BB2.8 cu ft | $7 |
Source
ES_1153030_WF5S2845BW_04222026064253_6440833View certified washing machine listingsENERGY STAR data as of July 2026Hisense and WF5S2845BW are used here for identification only and are not endorsements. Figures are computed by WattWise Labs from public ENERGY STAR data, not measured in our own lab.